Probably one of the best reasons why I like playing on a hacked ITG machine is that players get their files on the machine and design tournaments around them. Based on the tournament reception, sometimes those files stay on the machine. A particularly memorable instance for me is the packs designed by "MWOK".
He is one of my preferred step artists as he chooses fun files to create steps for. To download some of his work, click this link:
Master Wok's Sweet and Sour Surprise
He's looking for some feedback on his work, so if you post on DDRFreak, feel free to let him know what you think here.